发明名称 POLARIZING ELEMENT, LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a polarizing element with which a liquid crystal display device having high contrast ratios in all directions and having little color shift in oblique directions is attained. <P>SOLUTION: The polarizing element is equipped with: a polarizer; a first optical element satisfying inequalities (1) and (2); a second optical element satisfying inequalities (3) and (4); a third optical element satisfying inequalities (5) and (6) sequentially in this order. Inequality (1): 200 nm&le;Re[590]&le;350 nm, inequality (2): Re[590]>Rth[590], inequality (3): 70 nm&le;Re[590]&le;210 nm, inequality (4): Re[590]>Rth[590], inequality (5): Re[590]>0 nm, and inequality (6): Re[590]<Rth[590] (where Re[590] and Rth[590] are in-plane retardation of the film and retardation in the film thickness direction at 23&deg;C measured with light of 590 nm wavelength, respectively). <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007102016(A) 申请公布日期 2007.04.19
申请号 JP20050293808 申请日期 2005.10.06
申请人 TOHOKU UNIV;NITTO DENKO CORP;21 AOMORI SANGYO SOGO SHIEN CENTER 发明人 UCHIDA TATSUO;ISHINABE TAKAHIRO;SASAKI SHINICHI;HAYASHI MASAKI;WAKAO KAZUHIRO
分类号 G02B5/30;G02F1/13363 主分类号 G02B5/30
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